Engineering professor Arturo Castellani , Ph D. was an Italian
inventor (see the patent of his cathodic tube
"Telepantoscopio", 1937). He was the project manager of SAFAR
company (Societe Anonima Fabbricazione Apparecchi Radio), Milan, Italy from 1929 to 1945. (Information courtesy of
Diego Verdegiglio and Gino Brizioli)